Most fuel efficient All terrain tires?

I know it’s a bit of an oxymoron but looking for all terrains that won’t exactly annihilate MPG. Been doing some research and was thinking either Cooper Discoverer ATP II, Firestone Destination X/T, or Falken Wildpeak M/T01. Wasn’t too big a fan of the Michelin LTX AT2 looks but have heard performance is awesome.